Over twelve months: where the drops came from, how often, and how far. Past deals are no longer bookable and so are not links — what they add here is the pattern.
Where the deals to Luleå came from
The bar says how often a drop has been proven from that airport over twelve months. The badge says how far the price fell.
ParisCDG · France3−50 %1 bookable
NewarkEWR · United States3−50 %seen Sep 30
BrusselsBRU · Belgium2−50 %seen Nov 6
AmsterdamAMS · Netherlands1−50 %seen Sep 28
ParisORY · France1−50 %seen Oct 31
When the deals show up
A bar’s height is the number of drops spotted that month, its colour the month’s best discount. The tallest is September.